I bought the T400s as a replacement for my > 5 year old T41p. I was - and I still am -
really satisfied with the T41p (really, really robust machine that I have never ever
experienced any problems with). So my expectations were quiet high regarding hardware
quality and support - I was already kind of used to the 'old' quality that IBM offered.

You're wondering if I'm satisfied with the T400s? :-) Just one word: Yes! The
quality of the hardware is excellent. It is a really light machine - a bit smaller than
my old T41p. I really loved my old T41p keyboard, but I have to admit that the new Lenovo
layout is a hugh improvement - unbelievable, but it really is! The only thing that I dislike
is the non-hardware volume control. The mute button still is implemented 'in hardware', but
the actual volume control is not anymore. I really love to use the trackpoint and it still
feels as good as an IBM built trackpoint (very accurate etc.). Regarding the touchpad: I have
to admit that I have never used it on the T41p and I will probably never use it on the T400s.
Even though I like the feeling when touching it - the dots are a nice new feature. The screen
is okay - this was the only thing I was worried about when buying this laptop (viewing angle is
okay (not perfect) but it completely fits my needs and I am satisfied with the display. Please
do not expect anything FlexView like...sad, but these times are over now...).

Works out of the box. The Ericsson Business Mobile Networks is a USB device. Please note that you need to
insert a SIM card - otherwise the UMTS module nor the GPS will work. Yes, this is correct, without a SIM card,
the GPS will NOT work!
In order to get the UMTS card to work, do the following:

In case the device is not shown by "lsusb", you did not load the modules or
your radio devices are turned off completely (you can turn on the radio
devices again by changing the switch on the right side of your Thinkpad).

3.) Now use "comgt" (aptget -S comgt) to enter the PIN number of the SIM card using /dev/ttyACM0:

5.) Edit your wvdial.conf (agt-get -S wvdial). In case you use o2 Germany and have "Internet Flat M" booked, you
can use the configuration below. For other networks, please use your favourite search engine! ;-) Please note:
Use the configuration below at your own risk (I found it somewhere on the Internet - I will add
a reference to the original source as soon as I find the link again...). I am not responsible
for any trouble or legal issues you might have with it.

I have mapped all of them, yet, but this is straight forward. Use "xev" (start it under X) to figure out the key code of the button you
want to map. Add the code to your ~./.Xmodmap similar as shown below for the volume up / down keys.